diff --git a/backend/migrations/20240407182431-create-runs-cases.js b/backend/migrations/20240407182431-create-runs-cases.js
new file mode 100644
index 0000000..eeb6fa8
--- /dev/null
+++ b/backend/migrations/20240407182431-create-runs-cases.js
@@ -0,0 +1,52 @@
+"use strict";
+
+/** @type {import('sequelize-cli').Migration} */
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    await queryInterface.createTable("runCases", {
+      id: {
+        type: Sequelize.INTEGER,
+        primaryKey: true,
+        autoIncrement: true,
+      },
+      runId: {
+        type: Sequelize.INTEGER,
+        references: {
+          model: "runs",
+          key: "id",
+        },
+        onUpdate: "CASCADE",
+        onDelete: "CASCADE",
+      },
+      caseId: {
+        type: Sequelize.INTEGER,
+        references: {
+          model: "cases",
+          key: "id",
+        },
+        onUpdate: "CASCADE",
+        onDelete: "CASCADE",
+      },
+      status: {
+        type: Sequelize.INTEGER,
+        allowNull: false,
+      },
+      createdAt: {
+        type: Sequelize.DATE,
+        allowNull: false,
+      },
+      updatedAt: {
+        type: Sequelize.DATE,
+        allowNull: false,
+      },
+    });
+
+    await queryInterface.addIndex("runCases", ["runId", "caseId"], {
+      unique: true,
+    });
+  },
+
+  down: async (queryInterface, Sequelize) => {
+    await queryInterface.dropTable("runCases");
+  },
+};
diff --git a/backend/seeders/seed.js b/backend/seeders/seed.js
index badb5ca..48115f4 100644
--- a/backend/seeders/seed.js
+++ b/backend/seeders/seed.js
@@ -235,6 +235,23 @@ module.exports = {
         updatedAt: new Date(),
       },
     ]);
+
+    await queryInterface.bulkInsert("runCases", [
+      {
+        runId: 1,
+        caseId: 1,
+        status: 1,
+        createdAt: new Date(),
+        updatedAt: new Date(),
+      },
+      {
+        runId: 1,
+        caseId: 2,
+        status: 1,
+        createdAt: new Date(),
+        updatedAt: new Date(),
+      },
+    ]);
   },
 
   down: async (queryInterface, Sequelize) => {